Definition of Relation. A relation is a set of ordered pairs. This seems like an odd definition but weâll need it for the definition of a function (which is the main topic of this section).
Classic (Swedish) massage and Thai massage have been proven to relieve chronic lower back pain. Classic massage for lower back pain is a technique that relaxes muscles in the area through the application of pressure. The area is rubbed in the direction in which blood flows back to the heart. Thai massage, on the other hand, is a technique that pulls and stretches the area of the back and neck.
Experts say that's a bit better than the degree of benefit that most people see from taking over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs), like ibuprofen, for low back pain. But for a substantial minority, however, the improvements were much greater. At the end of the 10-week intervention, 36% and 39% of patients in the massage groups said their pain was nearly or completely gone, compared to 4% in the usual care group.